const fs = require("fs");
const path = require("path");
const marked = require("marked");
const { cleanUrl, escape } = require("marked/src/helpers");


module.exports = {
  sendMarkdownContent,
  sendMarkdownFile,
  parseMarkdown,
}


marked.setOptions({
  // highlight: function (code, lang) {
  //   const hljs = require('highlight.js');
  //   const language = hljs.getLanguage(lang) ? lang : 'plaintext';
  //   return hljs.highlight(code, {
  //     language
  //   }).value;
  // },
  // langPrefix: 'hljs language-', // highlight.js css expects a top-level 'hljs' class.
  pedantic: false,
  gfm: true,
  breaks: false,
  sanitize: false,
  smartLists: true,
  smartypants: false,
  xhtml: false
});


const renderer = {
  link(href, title, text) {
    href = cleanUrl(this.options.sanitize, this.options.baseUrl, href);
    if (href === null) {
      return text;
    }
    let out = '<a href="' + escape(href) + '"';
    if (title) {
      let useCopy = title.indexOf("@copy") == 0;
      if (useCopy) {
        out += ` onclick="writeClipboard('${decodeURIComponent(href)}', event)"`;
      }
      out += ' title="' + title + '"';
    }
    // let isDownload = text && text.match(/(下载|download)/i);
    // if (!isDownload) {
    //   out += ' target="_blank"';
    // }
    out += '>' + text + '</a>';
    return out;
  },
  code(code, infostring, escaped) {
    const lang = (infostring || '').match(/\S*/)[0];
    if (this.options.highlight) {
      const out = this.options.highlight(code, lang);
      if (out != null && out !== code) {
        escaped = true;
        code = out;
      }
    }

    code = code.replace(/\n$/, '') + '\n';

    if (!lang) {
      return `<code-block controls><pre><code>`
        + (escaped ? code : escape(code, true))
        + `</code></pre></code-block>\n`;
    }

    return `<code-block language="${escape(lang, true)}" label="${escape(lang, true)}" controls><pre><code class="`
      + this.options.langPrefix
      + escape(lang, true)
      + `">`
      + (escaped ? code : escape(code, true))
      + `</code></pre></code-block>\n`;
  },
};
marked.use({ renderer });



// // Override function
// const walkTokens = (token) => {
//   if (token.type === 'heading') {
//     token.depth += 1;
//   }
// };

// marked.use({ walkTokens });

function parseMarkdown(filecontent) {
  let title = filecontent.split(/[\r\n]{1,2}/)[0];
  title = title.replace(/^#+ /, "")
  let body = marked.parse(filecontent);
  return beautifyMarkdown(
    title,
    body)
}

function sendMarkdownFile(file, res) {
  let filecontent = fs.readFileSync(file, {
    "encoding": "utf-8"
  });
  sendMarkdownContent(filecontent, res);
}

function sendMarkdownContent(filecontent, res) {
  res.end(parseMarkdown(filecontent));
}

function beautifyMarkdown(title, body) {
  return `
  <html>
      <head>
          <title>${title}</title>
          <meta name="viewport" content="width=device-width, initial-scale=1">
          <style>

          pre code.hljs{display:block;overflow-x:auto;padding:1em}code.hljs{padding:3px 5px}.hljs{background:#fff;color:#000}.hljs-comment,.hljs-quote,.hljs-variable{color:green;font}.hljs-built_in,.hljs-keyword,.hljs-name,.hljs-selector-tag,.hljs-tag{color:#00f}.hljs-addition,.hljs-attribute,.hljs-literal,.hljs-section,.hljs-string,.hljs-template-tag,.hljs-template-variable,.hljs-title,.hljs-type{color:#a31515}.hljs-deletion,.hljs-meta,.hljs-selector-attr,.hljs-selector-pseudo{color:#2b91af}.hljs-doctag{color:grey}.hljs-attr{color:red}.hljs-bullet,.hljs-link,.hljs-symbol{color:#00b0e8}.hljs-emphasis{font-style:italic}.hljs-strong{font-weight:700}          

          </style>
          <style>
          .markdown-body .octicon {
              display: inline-block;
              fill: currentColor;
              vertical-align: text-bottom;
            }
            
            .markdown-body .anchor {
              float: left;
              line-height: 1;
              margin-left: -20px;
              padding-right: 4px;
            }
            
            .markdown-body .anchor:focus {
              outline: none;
            }
            
            .markdown-body h1 .octicon-link,
            .markdown-body h2 .octicon-link,
            .markdown-body h3 .octicon-link,
            .markdown-body h4 .octicon-link,
            .markdown-body h5 .octicon-link,
            .markdown-body h6 .octicon-link {
              color: #1b1f23;
              vertical-align: middle;
              visibility: hidden;
            }
            
            .markdown-body h1:hover .anchor,
            .markdown-body h2:hover .anchor,
            .markdown-body h3:hover .anchor,
            .markdown-body h4:hover .anchor,
            .markdown-body h5:hover .anchor,
            .markdown-body h6:hover .anchor {
              text-decoration: none;
            }
            
            .markdown-body h1:hover .anchor .octicon-link,
            .markdown-body h2:hover .anchor .octicon-link,
            .markdown-body h3:hover .anchor .octicon-link,
            .markdown-body h4:hover .anchor .octicon-link,
            .markdown-body h5:hover .anchor .octicon-link,
            .markdown-body h6:hover .anchor .octicon-link {
              visibility: visible;
            }
            
            .markdown-body h1:hover .anchor .octicon-link:before,
            .markdown-body h2:hover .anchor .octicon-link:before,
            .markdown-body h3:hover .anchor .octicon-link:before,
            .markdown-body h4:hover .anchor .octicon-link:before,
            .markdown-body h5:hover .anchor .octicon-link:before,
            .markdown-body h6:hover .anchor .octicon-link:before {
              width: 16px;
              height: 16px;
              content: ' ';
              display: inline-block;
              background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' version='1.1' width='16' height='16' aria-hidden='true'%3E%3Cpath fill-rule='evenodd' d='M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z'%3E%3C/path%3E%3C/svg%3E");
            }.markdown-body {
              -ms-text-size-adjust: 100%;
              -webkit-text-size-adjust: 100%;
              line-height: 1.5;
              color: #24292e;
              font-family: -apple-system,BlinkMacSystemFont,Segoe UI,Helvetica,Arial,sans-serif,Apple Color Emoji,Segoe UI Emoji;
              font-size: 16px;
              line-height: 1.5;
              word-wrap: break-word;
            }
            
            .markdown-body details {
              display: block;
            }
            
            .markdown-body summary {
              display: list-item;
            }
            
            .markdown-body a {
              background-color: initial;
            }
            
            .markdown-body a:active,
            .markdown-body a:hover {
              outline-width: 0;
            }
            
            .markdown-body strong {
              font-weight: inherit;
              font-weight: bolder;
            }
            
            .markdown-body h1 {
              font-size: 2em;
              margin: .67em 0;
            }
            
            .markdown-body img {
              border-style: none;
            }
            
            .markdown-body code,
            .markdown-body kbd,
            .markdown-body pre {
              font-family: monospace,monospace;
              font-size: 1em;
            }
            
            .markdown-body hr {
              box-sizing: initial;
              height: 0;
              overflow: visible;
            }
            
            .markdown-body input {
              font: inherit;
              margin: 0;
            }
            
            .markdown-body input {
              overflow: visible;
            }
            
            .markdown-body [type=checkbox] {
              box-sizing: border-box;
              padding: 0;
            }
            
            .markdown-body * {
              box-sizing: border-box;
            }
            
            .markdown-body input {
              font-family: inherit;
              font-size: inherit;
              line-height: inherit;
            }
            
            .markdown-body a {
              color: #0366d6;
              text-decoration: none;
            }
            
            .markdown-body a:hover {
              text-decoration: underline;
            }
            
            .markdown-body strong {
              font-weight: 600;
            }
            
            .markdown-body hr {
              height: 0;
              margin: 15px 0;
              overflow: hidden;
              background: transparent;
              border: 0;
              border-bottom: 1px solid #dfe2e5;
            }
            
            .markdown-body hr:after,
            .markdown-body hr:before {
              display: table;
              content: "";
            }
            
            .markdown-body hr:after {
              clear: both;
            }
            
            .markdown-body table {
              border-spacing: 0;
              border-collapse: collapse;
            }
            
            .markdown-body td,
            .markdown-body th {
              padding: 0;
            }
            
            .markdown-body details summary {
              cursor: pointer;
            }
            
            .markdown-body kbd {
              display: inline-block;
              padding: 3px 5px;
              font: 11px SFMono-Regular,Consolas,Liberation Mono,Menlo,monospace;
              line-height: 10px;
              color: #444d56;
              vertical-align: middle;
              background-color: #fafbfc;
              border: 1px solid #d1d5da;
              border-radius: 3px;
              box-shadow: inset 0 -1px 0 #d1d5da;
            }
            
            .markdown-body h1,
            .markdown-body h2,
            .markdown-body h3,
            .markdown-body h4,
            .markdown-body h5,
            .markdown-body h6 {
              margin-top: 0;
              margin-bottom: 0;
            }
            
            .markdown-body h1 {
              font-size: 32px;
            }
            
            .markdown-body h1,
            .markdown-body h2 {
              font-weight: 600;
            }
            
            .markdown-body h2 {
              font-size: 24px;
            }
            
            .markdown-body h3 {
              font-size: 20px;
            }
            
            .markdown-body h3,
            .markdown-body h4 {
              font-weight: 600;
            }
            
            .markdown-body h4 {
              font-size: 16px;
            }
            
            .markdown-body h5 {
              font-size: 14px;
            }
            
            .markdown-body h5,
            .markdown-body h6 {
              font-weight: 600;
            }
            
            .markdown-body h6 {
              font-size: 12px;
            }
            
            .markdown-body p {
              margin-top: 0;
              margin-bottom: 10px;
            }
            
            .markdown-body blockquote {
              margin: 0;
            }
            
            .markdown-body ol,
            .markdown-body ul {
              padding-left: 0;
              margin-top: 0;
              margin-bottom: 0;
            }
            
            .markdown-body ol ol,
            .markdown-body ul ol {
              list-style-type: lower-roman;
            }
            
            .markdown-body ol ol ol,
            .markdown-body ol ul ol,
            .markdown-body ul ol ol,
            .markdown-body ul ul ol {
              list-style-type: lower-alpha;
            }
            
            .markdown-body dd {
              margin-left: 0;
            }
            
            .markdown-body code,
            .markdown-body pre {
              font-family: SFMono-Regular,Consolas,Liberation Mono,Menlo,monospace;
              font-size: 12px;
            }
            
            .markdown-body pre {
              margin-top: 0;
              margin-bottom: 0;
            }
            
            .markdown-body input::-webkit-inner-spin-button,
            .markdown-body input::-webkit-outer-spin-button {
              margin: 0;
              -webkit-appearance: none;
              appearance: none;
            }
            
            .markdown-body :checked+.radio-label {
              position: relative;
              z-index: 1;
              border-color: #0366d6;
            }
            
            .markdown-body .border {
              border: 1px solid #e1e4e8!important;
            }
            
            .markdown-body .border-0 {
              border: 0!important;
            }
            
            .markdown-body .border-bottom {
              border-bottom: 1px solid #e1e4e8!important;
            }
            
            .markdown-body .rounded-1 {
              border-radius: 3px!important;
            }
            
            .markdown-body .bg-white {
              background-color: #fff!important;
            }
            
            .markdown-body .bg-gray-light {
              background-color: #fafbfc!important;
            }
            
            .markdown-body .text-gray-light {
              color: #6a737d!important;
            }
            
            .markdown-body .mb-0 {
              margin-bottom: 0!important;
            }
            
            .markdown-body .my-2 {
              margin-top: 8px!important;
              margin-bottom: 8px!important;
            }
            
            .markdown-body .pl-0 {
              padding-left: 0!important;
            }
            
            .markdown-body .py-0 {
              padding-top: 0!important;
              padding-bottom: 0!important;
            }
            
            .markdown-body .pl-1 {
              padding-left: 4px!important;
            }
            
            .markdown-body .pl-2 {
              padding-left: 8px!important;
            }
            
            .markdown-body .py-2 {
              padding-top: 8px!important;
              padding-bottom: 8px!important;
            }
            
            .markdown-body .pl-3,
            .markdown-body .px-3 {
              padding-left: 16px!important;
            }
            
            .markdown-body .px-3 {
              padding-right: 16px!important;
            }
            
            .markdown-body .pl-4 {
              padding-left: 24px!important;
            }
            
            .markdown-body .pl-5 {
              padding-left: 32px!important;
            }
            
            .markdown-body .pl-6 {
              padding-left: 40px!important;
            }
            
            .markdown-body .f6 {
              font-size: 12px!important;
            }
            
            .markdown-body .lh-condensed {
              line-height: 1.25!important;
            }
            
            .markdown-body .text-bold {
              font-weight: 600!important;
            }
            
            .markdown-body .pl-c {
              color: #6a737d;
            }
            
            .markdown-body .pl-c1,
            .markdown-body .pl-s .pl-v {
              color: #005cc5;
            }
            
            .markdown-body .pl-e,
            .markdown-body .pl-en {
              color: #6f42c1;
            }
            
            .markdown-body .pl-s .pl-s1,
            .markdown-body .pl-smi {
              color: #24292e;
            }
            
            .markdown-body .pl-ent {
              color: #22863a;
            }
            
            .markdown-body .pl-k {
              color: #d73a49;
            }
            
            .markdown-body .pl-pds,
            .markdown-body .pl-s,
            .markdown-body .pl-s .pl-pse .pl-s1,
            .markdown-body .pl-sr,
            .markdown-body .pl-sr .pl-cce,
            .markdown-body .pl-sr .pl-sra,
            .markdown-body .pl-sr .pl-sre {
              color: #032f62;
            }
            
            .markdown-body .pl-smw,
            .markdown-body .pl-v {
              color: #e36209;
            }
            
            .markdown-body .pl-bu {
              color: #b31d28;
            }
            
            .markdown-body .pl-ii {
              color: #fafbfc;
              background-color: #b31d28;
            }
            
            .markdown-body .pl-c2 {
              color: #fafbfc;
              background-color: #d73a49;
            }
            
            .markdown-body .pl-c2:before {
              content: "^M";
            }
            
            .markdown-body .pl-sr .pl-cce {
              font-weight: 700;
              color: #22863a;
            }
            
            .markdown-body .pl-ml {
              color: #735c0f;
            }
            
            .markdown-body .pl-mh,
            .markdown-body .pl-mh .pl-en,
            .markdown-body .pl-ms {
              font-weight: 700;
              color: #005cc5;
            }
            
            .markdown-body .pl-mi {
              font-style: italic;
              color: #24292e;
            }
            
            .markdown-body .pl-mb {
              font-weight: 700;
              color: #24292e;
            }
            
            .markdown-body .pl-md {
              color: #b31d28;
              background-color: #ffeef0;
            }
            
            .markdown-body .pl-mi1 {
              color: #22863a;
              background-color: #f0fff4;
            }
            
            .markdown-body .pl-mc {
              color: #e36209;
              background-color: #ffebda;
            }
            
            .markdown-body .pl-mi2 {
              color: #f6f8fa;
              background-color: #005cc5;
            }
            
            .markdown-body .pl-mdr {
              font-weight: 700;
              color: #6f42c1;
            }
            
            .markdown-body .pl-ba {
              color: #586069;
            }
            
            .markdown-body .pl-sg {
              color: #959da5;
            }
            
            .markdown-body .pl-corl {
              text-decoration: underline;
              color: #032f62;
            }
            
            .markdown-body .mb-0 {
              margin-bottom: 0!important;
            }
            
            .markdown-body .my-2 {
              margin-bottom: 8px!important;
            }
            
            .markdown-body .my-2 {
              margin-top: 8px!important;
            }
            
            .markdown-body .pl-0 {
              padding-left: 0!important;
            }
            
            .markdown-body .py-0 {
              padding-top: 0!important;
              padding-bottom: 0!important;
            }
            
            .markdown-body .pl-1 {
              padding-left: 4px!important;
            }
            
            .markdown-body .pl-2 {
              padding-left: 8px!important;
            }
            
            .markdown-body .py-2 {
              padding-top: 8px!important;
              padding-bottom: 8px!important;
            }
            
            .markdown-body .pl-3 {
              padding-left: 16px!important;
            }
            
            .markdown-body .pl-4 {
              padding-left: 24px!important;
            }
            
            .markdown-body .pl-5 {
              padding-left: 32px!important;
            }
            
            .markdown-body .pl-6 {
              padding-left: 40px!important;
            }
            
            .markdown-body .pl-7 {
              padding-left: 48px!important;
            }
            
            .markdown-body .pl-8 {
              padding-left: 64px!important;
            }
            
            .markdown-body .pl-9 {
              padding-left: 80px!important;
            }
            
            .markdown-body .pl-10 {
              padding-left: 96px!important;
            }
            
            .markdown-body .pl-11 {
              padding-left: 112px!important;
            }
            
            .markdown-body .pl-12 {
              padding-left: 128px!important;
            }
            
            .markdown-body hr {
              border-bottom-color: #eee;
            }
            
            .markdown-body kbd {
              display: inline-block;
              padding: 3px 5px;
              font: 11px SFMono-Regular,Consolas,Liberation Mono,Menlo,monospace;
              line-height: 10px;
              color: #444d56;
              vertical-align: middle;
              background-color: #fafbfc;
              border: 1px solid #d1d5da;
              border-radius: 3px;
              box-shadow: inset 0 -1px 0 #d1d5da;
            }
            
            .markdown-body:after,
            .markdown-body:before {
              display: table;
              content: "";
            }
            
            .markdown-body:after {
              clear: both;
            }
            
            .markdown-body>:first-child {
              margin-top: 0!important;
            }
            
            .markdown-body>:last-child {
              margin-bottom: 0!important;
            }
            
            .markdown-body a:not([href]) {
              color: inherit;
              text-decoration: none;
            }
            
            .markdown-body blockquote,
            .markdown-body details,
            .markdown-body dl,
            .markdown-body ol,
            .markdown-body p,
            .markdown-body pre,
            .markdown-body table,
            .markdown-body ul {
              margin-top: 0;
              margin-bottom: 16px;
            }
            
            .markdown-body hr {
              height: .25em;
              padding: 0;
              margin: 24px 0;
              background-color: #e1e4e8;
              border: 0;
            }
            
            .markdown-body blockquote {
              padding: 0 1em;
              color: #6a737d;
              border-left: .25em solid #dfe2e5;
            }
            
            .markdown-body blockquote>:first-child {
              margin-top: 0;
            }
            
            .markdown-body blockquote>:last-child {
              margin-bottom: 0;
            }
            
            .markdown-body h1,
            .markdown-body h2,
            .markdown-body h3,
            .markdown-body h4,
            .markdown-body h5,
            .markdown-body h6 {
              margin-top: 24px;
              margin-bottom: 16px;
              font-weight: 600;
              line-height: 1.25;
            }
            
            .markdown-body h1 {
              font-size: 2em;
            }
            
            .markdown-body h1,
            .markdown-body h2 {
              padding-bottom: .3em;
              border-bottom: 1px solid #eaecef;
            }
            
            .markdown-body h2 {
              font-size: 1.5em;
            }
            
            .markdown-body h3 {
              font-size: 1.25em;
            }
            
            .markdown-body h4 {
              font-size: 1em;
            }
            
            .markdown-body h5 {
              font-size: .875em;
            }
            
            .markdown-body h6 {
              font-size: .85em;
              color: #6a737d;
            }
            
            .markdown-body ol,
            .markdown-body ul {
              padding-left: 2em;
            }
            
            .markdown-body ol ol,
            .markdown-body ol ul,
            .markdown-body ul ol,
            .markdown-body ul ul {
              margin-top: 0;
              margin-bottom: 0;
            }
            
            .markdown-body li {
              word-wrap: break-all;
            }
            
            .markdown-body li>p {
              margin-top: 16px;
            }
            
            .markdown-body li+li {
              margin-top: .25em;
            }
            
            .markdown-body dl {
              padding: 0;
            }
            
            .markdown-body dl dt {
              padding: 0;
              margin-top: 16px;
              font-size: 1em;
              font-style: italic;
              font-weight: 600;
            }
            
            .markdown-body dl dd {
              padding: 0 16px;
              margin-bottom: 16px;
            }
            
            .markdown-body table {
              display: block;
              width: 100%;
              overflow: auto;
            }
            
            .markdown-body table th {
              font-weight: 600;
            }
            
            .markdown-body table td,
            .markdown-body table th {
              padding: 6px 13px;
              border: 1px solid #dfe2e5;
            }
            
            .markdown-body table tr {
              background-color: #fff;
              border-top: 1px solid #c6cbd1;
            }
            
            .markdown-body table tr:nth-child(2n) {
              background-color: #f6f8fa;
            }
            
            .markdown-body img {
              max-width: 100%;
              min-width: 50px;
              box-sizing: initial;
              background-color: #fff;
            }

            .markdown-body td img {
              /* max-width: 100%; */
              max-height: 3em;
              vertical-align: middle;
              box-sizing: initial;
              /* background-color: #fff; */
              background-color: unset;
              filter: drop-shadow(1px 1px 1px gray);
            }
            
            .markdown-body img[align=right] {
              padding-left: 20px;
            }
            
            .markdown-body img[align=left] {
              padding-right: 20px;
            }
            
            .markdown-body code {
              padding: .2em .4em;
              margin: 0;
              font-size: 85%;
              background-color: rgba(27,31,35,.05);
              border-radius: 3px;
            }
            
            .markdown-body pre {
              word-wrap: normal;
            }
            
            .markdown-body pre>code {
              padding: 0;
              margin: 0;
              font-size: 100%;
              word-break: normal;
              white-space: pre;
              background: transparent;
              border: 0;
            }
            
            .markdown-body .highlight {
              margin-bottom: 16px;
            }
            
            .markdown-body .highlight pre {
              margin-bottom: 0;
              word-break: normal;
            }
            
            .markdown-body .highlight pre,
            .markdown-body pre {
              padding: 16px;
              overflow: auto;
              font-size: 85%;
              line-height: 1.45;
              background-color: #f6f8fa;
              border-radius: 3px;
            }
            
            .markdown-body pre code {
              display: inline;
              max-width: auto;
              padding: 0;
              margin: 0;
              overflow: visible;
              line-height: inherit;
              word-wrap: normal;
              background-color: initial;
              border: 0;
            }
            
            .markdown-body .commit-tease-sha {
              display: inline-block;
              font-family: SFMono-Regular,Consolas,Liberation Mono,Menlo,monospace;
              font-size: 90%;
              color: #444d56;
            }
            
            .markdown-body .full-commit .btn-outline:not(:disabled):hover {
              color: #005cc5;
              border-color: #005cc5;
            }
            
            .markdown-body .blob-wrapper {
              overflow-x: auto;
              overflow-y: hidden;
            }
            
            .markdown-body .blob-wrapper-embedded {
              max-height: 240px;
              overflow-y: auto;
            }
            
            .markdown-body .blob-num {
              width: 1%;
              min-width: 50px;
              padding-right: 10px;
              padding-left: 10px;
              font-family: SFMono-Regular,Consolas,Liberation Mono,Menlo,monospace;
              font-size: 12px;
              line-height: 20px;
              color: rgba(27,31,35,.3);
              text-align: right;
              white-space: nowrap;
              vertical-align: top;
              cursor: pointer;
              -webkit-user-select: none;
              -moz-user-select: none;
              -ms-user-select: none;
              user-select: none;
            }
            
            .markdown-body .blob-num:hover {
              color: rgba(27,31,35,.6);
            }
            
            .markdown-body .blob-num:before {
              content: attr(data-line-number);
            }
            
            .markdown-body .blob-code {
              position: relative;
              padding-right: 10px;
              padding-left: 10px;
              line-height: 20px;
              vertical-align: top;
            }
            
            .markdown-body .blob-code-inner {
              overflow: visible;
              font-family: SFMono-Regular,Consolas,Liberation Mono,Menlo,monospace;
              font-size: 12px;
              color: #24292e;
              word-wrap: normal;
              white-space: pre;
            }
            
            .markdown-body .pl-token.active,
            .markdown-body .pl-token:hover {
              cursor: pointer;
              background: #ffea7f;
            }
            
            .markdown-body .tab-size[data-tab-size="1"] {
              -moz-tab-size: 1;
              tab-size: 1;
            }
            
            .markdown-body .tab-size[data-tab-size="2"] {
              -moz-tab-size: 2;
              tab-size: 2;
            }
            
            .markdown-body .tab-size[data-tab-size="3"] {
              -moz-tab-size: 3;
              tab-size: 3;
            }
            
            .markdown-body .tab-size[data-tab-size="4"] {
              -moz-tab-size: 4;
              tab-size: 4;
            }
            
            .markdown-body .tab-size[data-tab-size="5"] {
              -moz-tab-size: 5;
              tab-size: 5;
            }
            
            .markdown-body .tab-size[data-tab-size="6"] {
              -moz-tab-size: 6;
              tab-size: 6;
            }
            
            .markdown-body .tab-size[data-tab-size="7"] {
              -moz-tab-size: 7;
              tab-size: 7;
            }
            
            .markdown-body .tab-size[data-tab-size="8"] {
              -moz-tab-size: 8;
              tab-size: 8;
            }
            
            .markdown-body .tab-size[data-tab-size="9"] {
              -moz-tab-size: 9;
              tab-size: 9;
            }
            
            .markdown-body .tab-size[data-tab-size="10"] {
              -moz-tab-size: 10;
              tab-size: 10;
            }
            
            .markdown-body .tab-size[data-tab-size="11"] {
              -moz-tab-size: 11;
              tab-size: 11;
            }
            
            .markdown-body .tab-size[data-tab-size="12"] {
              -moz-tab-size: 12;
              tab-size: 12;
            }
            
            .markdown-body .task-list-item {
              list-style-type: none;
            }
            
            .markdown-body .task-list-item+.task-list-item {
              margin-top: 3px;
            }
            
            .markdown-body .task-list-item input {
              margin: 0 .2em .25em -1.6em;
              vertical-align: middle;
            }
  
              .markdown-body {
                  box-sizing: border-box;
                  min-width: 200px;
                  max-width: 1080px;
                  margin: 0 auto;
                  padding: 45px;
              }
          
              @media (max-width: 767px) {
                  .markdown-body {
                      padding: 15px;
                  }
              }
          </style>
      </head>
      <body>
      <div class="markdown-body">
  ` +
    body +
    `</div>
<link rel="stylesheet" href="/api/public/styles/vs.min.css" />
<script src="/api/public/scripts/html-code-block-element.common.min.js" defer></script>
<style>
code-block button {
  border-radius: 6px;
  appearance: none;
  color: #24292f;
  background-color: #f6f8fa;
  border: 1px solid;
  border-color: rgba(27, 31, 36, 0.15);
  box-shadow: 0 1px 0 rgba(27, 31, 36, 0.04),inset 0 1px 0 rgba(255, 255, 255, 0.25);
  transition: .2s cubic-bezier(0.3, 0, 0.5, 1);
  transition-property: color,background-color,border-color;
  margin: 8px !important;
  cursor: pointer;
}
</style>
<script>
async function writeClipboard(value, event) {
  event && event.preventDefault();
  function callback(ok) {
    if (ok) {
      T.showToast(1,'复制成功',800);
    } else {
      T.showToast(2,'复制失败, 请手动复制',800);
    }
  }
  try {
    if (navigator.clipboard) {
      navigator.clipboard.writeText(value);
      callback(true);
    } else {
      await new Promise((resolve => {
          const textarea = document.createElement("textarea");
          textarea.value = value;
          document.body.append(textarea);
          textarea.select();
          document.execCommand("copy");
          textarea.remove();
          resolve();
          callback(true);
      }))
    }
  } catch (err) {
    callback(false);
  }
  
}
</script>
<style>
.toast {
  text-align: center;
  min-height: 70px;
  width: 150px;
  color: #e6e6e6;
  border-radius: 4px;
  background: rgba(0, 0, 0, 0.7);
  position: fixed;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

.toast-icon {
padding-top: 10px;
padding-bottom: 10px;
}

.toast-tip {
padding-left: 20px;
padding-right: 20px;
padding-bottom: 10px;
}
</style>
<script>
/*
 * @Author: liguowei
 * @Date:   2019-04-08 10:25:42
 * @Last Modified by:   liguowei01
 * @Last Modified time: 2019-04-08 11:17:17
 */
function toast(){};
toast.prototype = {
    init:function(){      
    },
    iconObj : {
        right:'',
        err:'',
tip:''
    },
    toastTxtObj : {
        right:'成功',
        err:'失败',
        tip:'提示'
    },
    /*
    * icon 1成功   2失败  3 提示
    * toastTxt 提示语
    * time 关闭前的毫秒数 不传默认2000
     */
    showToast: function(icon,toastTxt,time){
        var iconSrc;        
        switch(parseInt(icon)){
            case 1:
            iconSrc = this.iconObj.right;
            break;
            case 2:
            iconSrc = this.iconObj.err;
            break;
            case 3:
            iconSrc = this.iconObj.tip;
            break;
            default:
            iconSrc = this.iconObj.right;
            break;
        }
        var toastTxt = toastTxt || this.toastTxtObj.right;
        html = '<div class="toast-icon"><img src="'+iconSrc+'"></div><div class="toast-tip">'+toastTxt+'</div></div>';
        toastBox = document.createElement('div');
        toastBox.className = 'toast';
        toastBox.id = 'toast';
        toastBox.innerHTML = html;
        document.body.appendChild(toastBox);
    setTimeout(function(){
      document.getElementById('toast').parentNode.removeChild(document.getElementById('toast'));
    },time||2000)
    },
    T:function() {
        var b, a, f = window['document']['getElementsByTagName']("script");
        for (var c = 0; c < f.length; c++) {
            b = f[c].getAttribute("src") || "";
            b = b.substr(0, b.toLowerCase().indexOf("toast.js"));
            var a = b.lastIndexOf("/");
            if (a > 0) {
                b = b.substring(0, a + 1)
            }
            if (b) {
                break;
            }
        }
        return b
    }



}
var T = new toast();
T.init();
</script>
    </body>
          </html>
          `;
}
